package Computer;

public class Computer {
    public void powerOn() {
        System.out.println("打开笔记本电脑");
    }
    public void powerOff() {
        System.out.println("关闭笔记本电脑");
    }

    public void useDevice(IUSB iusb){
        iusb.openDevice();
        if (iusb instanceof Mouse) {
            Mouse mouse = (Mouse) iusb;
            mouse.click();
        } else if (iusb instanceof KeyBoard) {
            KeyBoard keyBoard = (KeyBoard)iusb;
            keyBoard.input();
        }
        iusb.closeDevice();
    }
}

